ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ç¦Ðîµç³ØÊdz£ÓõĻ¯Ñ§µçÔ´£¬Æäµç¼«²ÄÁÏÊÇPbºÍPbO2£¬µç½âҺΪϡÁòËá¡£¹¤×÷ʱ¸Ãµç³Ø×Ü·´Ó¦Ê½Îª£ºPbO2 + Pb + 2H2SO4 == 2PbSO4+ 2H2O£¬¾Ý´ËÅжϣº
£¨1£©Ç¦Ðîµç³ØµÄ¸º¼«²ÄÁÏÊÇ________£¬Õý¼«²ÄÁÏÊÇ________¡£
£¨2£©¹¤×÷ʱÕý¼«·´Ó¦Îª________________________________¡£
£¨3£©¹¤×÷ʱ£¬µç½âÖÊÈÜÒºµÄpH________£¨Ìî¡°Ôö´ó¡±¡¢¡°¼õС¡±»ò¡°²»±ä¡±£©
£¨4£©¹¤×÷ʱ£¬µç½âÖÊÈÜÒºÖÐÒõÀë×ÓÒÆÏò______¼«£»µçÁ÷·½Ïò´Ó________¼«Á÷Ïò________¼«¡££¨ÌîÕý£¬¸º£©
¡¾´ð°¸¡¿£¨1£©Pb£»PbO2£¨2£©PbO2+4H++SO42-+2e-£½PbSO4+2H2O £¨3£©Ôö´ó£¨4£©¸º£»Õý£»¸º
¡¾½âÎö¡¿
ÊÔÌâ·ÖÎö£º£¨1£©Ç¦Ðîµç³ØµÄ¸º¼«·¢Éúʧȥµç×ÓµÄÑõ»¯·´Ó¦£¬Ôò¸ù¾Ý×Ü·´Ó¦Ê½¿ÉÖª¸º¼«²ÄÁÏÊÇPb£¬Õý¼«·¢ÉúµÃµ½µç×ӵĻ¹Ô·´Ó¦£¬ÔòÕý¼«²ÄÁÏÊÇPbO2¡£
£¨2£©¹¤×÷ʱÕý¼«¶þÑõ»¯Ç¦µÃµ½µç×Óת»¯ÎªÁòËáǦ£¬µç¼«·´Ó¦ÎªPbO2+4H++SO42-+2e-£½PbSO4+2H2O¡£
£¨3£©¹¤×÷ʱÏûºÄÁòËᣬÇâÀë×ÓŨ¶È½µµÍ£¬Ôòµç½âÖÊÈÜÒºµÄpHÔö´ó£»
£¨4£©¹¤×÷ʱ£¬µç½âÖÊÈÜÒºÖÐÒõÀë×ÓÒÆÏò¸º¼«£»µçÁ÷·½Ïò´ÓÕý¼«Á÷Ïò¸º¼«¡£
¡¾ÌâÄ¿¡¿Ï±íÊÇA¡¢B¡¢C¡¢D¡¢E¡¢FÁùÖÖÇ°20ºÅÔªËصIJ¿·Ö»¯ºÏ¼Û¡¢µç¸ºÐÔºÍÔ×Ӱ뾶Êý¾Ý¡£ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨ £©
A | B | C | D | E | F | |
»¯ºÏ¼Û | +1 | -2 | -1 | -2 | -1 | +2 |
µç¸ºÐÔ | 2.1 | 2.5 | 3.0 | 3.5 | 4.0 | 1.0 |
Ô×Ӱ뾶/nm | 0.037 | 0.102 | 0.099 | 0.073 | 0.071 | 0.194 |
A£®AµÄµ¥ÖÊÖк¬ÓнðÊô¼ü B£®FD2º¬ÓзǼ«ÐÔ¹²¼Û¼ü
C£®·Ðµã£ºA2D<A2B D£®×î¸ß¼ÛÑõ»¯Îï¶ÔӦˮ»¯ÎïµÄËáÐÔ£ºB>C